High power repeaters for Raman amplified, wave division multiplexed optical communication systems

a repeater and optical communication technology, applied in multiplex communication, instruments, optical elements, etc., can solve the problem of relative narrow bandwidth within which this form of resonant amplification occurs

Inactive Publication Date: 2006-10-10
OPTIC153 LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0010]These, and other, drawbacks, limitations and problems associated with conventional optical communication systems are overcome by exemplary embodiments of the present invention, wherein a high power repeater for use in an undersea optical communication includes a pressure vessel, a frame, disposed within the pressure vessel, for holding optical signal amplification circuitry and other circuitry, wherein the repeater draws more than 250 watts to power said optical si

Problems solved by technology

One drawback of EDFA amplification techniques is the relatively narrow bandwidth within which this form of resonant amplification occurs, i.e., the so-called erbium spectrum.
However, as the limits of EDFA amplification are now being reached, recent efforts have begun to explore the design issues associated with supplementing, or replacing, EDFA amplification technology with Raman amplification technology.

Method used

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Embodiment Construction

[0037]In the following description, for the purposes of explanation and not limitation, specific details are set forth, such as particular systems, networks, software, components, techniques, etc., in order to provide a thorough understanding of the present invention. However, it will be apparent to one skilled in the art that the present invention may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of known methods, devices and circuits are abbreviated or omitted so as not to obscure the present invention.

[0038]Repeaters which enable high power Raman-amplified optical signal transmission systems can be employed in systems such as those depicted in FIG. 1, i.e., submarine optical communication systems, or in terrestrial systems. For the purpose of illustration, rather than limitation, an exemplary Raman-amplified system is described below for context. Those skilled in the art will appreciate that many different sys...

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Abstract

High power repeaters for use in amplifying optical data signals transmitted through undersea fiber optic cables are disclosed. Raman amplification schemes using 100 or more pump lasers are integrated into industry standard sized pressure vessels for amplifying optical data signals transmitted through one or more fiber optic pairs. Other repeater features include high density packaging, efficient power distribution, and component sharing.

Description

BACKGROUND[0001]From the advent of the telephone, people and businesses have craved communication technology and its ability to transport information in various formats, e.g., voice, image, etc., over long distances. Typical of innovations in communication technology, recent developments have provided enhanced communications capabilities in terms of the speed at which data can be transferred, as well as the overall amount of data being transferred. As these capabilities improve, new content delivery vehicles, e.g., the Internet, wireless telephony, etc., drive the provision of new services, e.g., purchasing items remotely over the Internet, receiving stock quotes using wireless short messaging service (SMS) capabilities etc., which in turn fuels demand for additional communications capabilities and innovation.[0002]Recently, optical communications have come to the forefront as a next generation communication technology. Advances in optical fibers over which optical data signals can ...

Claims

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Application Information

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IPC IPC(8): H04B10/00G02B6/44H02G3/04H04B10/17
CPCG02B6/4428G02B6/4448H04B10/2916H04B10/2918H04B10/298
InventorPEDERSEN, BOJOHNSON, RONALD E.
OwnerOPTIC153 LLC